Bark-stripping machine



Feb. 6, 1923.

R. SOBOLEWSKI BARK STR|PP|NG MACHINE. FlLED MAY 8. 1920.

.4 SHEETS-SHEET 2 Patented Feb. 6, i923..

ROMAN SOBOLEWSKI, OF CHICAGO, LLINOIS.

BARK-S'JIRIEPIISIGV MACHINE.

Application filed May 8, 1920. Serial No. 379,728.

To all 'whom t may concern,.-

Be it known that I, ROMAN SoBoLEwsKI, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful improvements in Bark-Strip-V stri Ainor machine havin a conve er of means mounted on the conveyer kfor grasping and securely holding the material operated upon.

Another object is the provision of a bark stripping machine of means 'for auto-- matically discharging the material operated upon-after the same has passed through the machine. v

Other objects appear hereinafter.

The invention consists in the combinations and arrangements in parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specificaion and in which,

Figure 1, is a side elevational view of the invention, and

Fig. 2, is a top plan view of the invention,

Fig. 3 is a sectional view taken on the substantially line 3 3 of Fig. 2,

Fig. 4, is a sectional view taken substantially line 4-4 of F ig. 2,

Fig. 5, is a front elevational view of the invention,

Fig. 6, is a fragmentary vertical sectional view of the elevation.

The invention is designed for use in stripping the bark from twigs or saplings which are used in making wicker and willow work such as chairs, stands, etc. The invention on the is mounted upon a platform 8 which is supported by standards or legs 9. The preferred form of construction comprises a frame 10 which is mounted adajacent one end of the platform 8. Secured to the frame 1() by bolts 11 projecting therethrough is a suitable bearing 12 in which is journaled a shaft 18. lt of course is apparent that a frame 10 is mounted at each side of the the frame 10 is al pinion platform 8. Rigidly mounted upon the shaft 13 adjacent one end thereof and eX-` `l terior of the frame l0 is a collar 14. At

the opposite end of the shaft 13 is rigidly V mounted a pulley or drive wheel 15 which is spaced from the frame 10 by a suitable collar 16. Rigidly mounted upon the' shaftA 13 adjacent one end thereof and interior o'f 17. A similar pinion 18 is yrigidly mounted adj acentl its opposite end and interior of the eov -upon the shaft 13 opposite frame 1t) and spaced therefrom. i

Mounted upon the platform 8 intermediate the ends thereof at the opposite sides'of the platformis a frame-19 provided 'with bearings which are spaced apart.

. y Jour-` naled `in the uppermost of these bearings is a suitable shaft 20. Journaled at one side Y of the platform in the lowervof these hearings is a shaft 21. Atthe opposite side of the frame vjournaled in the lower bearing of the frame 19 is a shaft 22. tached to the shaft 20 adjacent' one end thereof and interior ofthe frame 19 is a" suitable gear wheel 22. Rigidly mounted upon the shaft 2O adjacent its opposite ends and interior Journaled upon the shaft 21 in alignment with the pinion 22 is a gear wheel 23 `the inner end of the shaft 21 beingsupported in a suitable bearing formed in a bracket 26 which is secured to the frame 8; Mounted upon the shaft 22 in alignment with the pinion 23 is a gear wheel 24, the inner endof the shaft 22 being journaled in a suit- I able bracket 25 mounted upon theframe 8. Mounted at the rearward end of the frame viugidiy at of the frame 19 is a pinion 23.

9 at the opposite sides thereof are frames 27. rSecured to each by suitable bolts 29 is va bearing 28 similar to the bearings on the forward "end of the frame. Journaled .in the hearing 28 is a shaft v3() mounted upon which interior of the frames 27 are gear wheels corresponding to and in ali nment with the gear wheels 18 and 17. uit-able ioo chain belts 31 and 3()lr are provided whichA are adapted to engage with the gear wheels provided upon the transversely extended shafts already described as will be readily other chain at the opposite side extending the full lengthj of the frame. Secured to the `chains 30 and 31 and arranged trans understood. It is evident that one of the y `chains is et one side of the frame and the versely thereof are secured gripping plates f which com rise a horizontall extended portion 32 by means of which the same is secured to the chains 31 and 30 by bolting or other suitable manner and an arcuate portion 33 extends from portion 32 the arcuate portion 33 being adapted to engage the upper surface of the portion 32 of the forwardly adjacent plate.

Mounted upon the frame 8 at the forward end thereof is a U shaped supporting member 34; upon which is positioned at intervals suitable strippers 36, said strippers 36 being pivotally mounted in the brackets 35 secured to the member 34. rlhe stripper 36 is formed from some spring rod material and comprises a substantially U shaped member the legs of which extend downwardly and are bulged or bent inwardly as at 37. As shown in F ig. 5, the portion between the member 35 and the portion is curved to present the stripping portion proper forwardly of the -side of 3a. Legs of the stripper are retained in close relation by suitable spiral springs 38 which are secured at their opposite ends to the opposite legs of the stripper.

n operation the machine is driven by some suitable source of power which is connected to the drive wheel l5. By rotating wheel l5 the belt or conveyer comprising the chains and the gripper-s are caused to travel as will be readily understood. The material to be operated upon, that is the saplings or twigs, are inserted in the forward end of the machine between the legs of the stripper in that portion which extends b elow the inwardly bent portion 3T. As will be noted when the chains are making the turn the grippers are disengaged from the adjacent gripper and the twig or sapling 39 is inserted between the legs as already described and enters the open end of the gripper 33. As the knife travels along it again assumes an engaged relation with the member 32 thereby securely clamping or binding the twig 39 in position. As this twig travels along the belt it engages a U shaped stripper at the inwardly bent portion 37. The stripper thereby engaging the bark and causing the same to be stripped from the twig or sa-pling. The position or portion of the stripper at which the minimum space exists between the legs is sub stantially on the same plane as the plane of the upper port-ion of the chains forming the conveyer. Mounted upon the member 34- is a suitable stop L l0 which extends transversely of the frame and projects forwardly of the support 3e. The purposeof the member a() is to limit the rearward swinging of the strippers.

lhile I have illustrated and described the preferred form of constructipnfor carrying my invention into effect. this is capable of variation and modification without departing from the spirit of the invent-ion. l,

therefore, do not wish to be limited to the precise details of construction `set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having described my invention, what l claim as new and desire to secure by Letters Patent is ll. A bark stripping machine comprising a support having an endless belt mounted thereon; and a gripping member secured at an angle to, and overhanging said belt, adapted to 'travel with its secured end forward, and in a straight line of travel of the belt to approach same, but receding therefrom as said belt travels around a curve, substantially as described.

2. A bark stripping` machine comprising a supporthaving an endless belt mounted thereon; and spaced gripping members secured to, and overhanging said belt, and' each other, and adapted in a straight line travel of said belt to approach same, and each other, so as to overlap, but receding from said belt and eachother as said belt travels around a curve, substantially as described.

3. A bark stripping machine comprising a support having endless belts mounted thereon, and gripping members having their edges connected to said belts and the free edges thereof overhanging said belts so `that in a straight line travel of the belts the free edge of one member approaches said belts and the top surface of an adjacent member but recedes therefrom as the belts travel around a curve, substantially as described.

el. A bark stripping machine comprising a support having endless belts mounted thereon; and gripping members arcuate in tosaid belts and so arranged that in straight line travel of the belts the free edge of one member approaches the outside surface of an adjacent member but recedes therefrom as the belts travel around a curve, substantially as described.

5. A bark stripping machine comprising a support having endless belts mounted thereon, gripping members secured to and overhanging said belts and each other and so arranged that in straight line travel of the belts the free edge of one member approaches said belts and the top surface of an adjacent member but recedes therefrom as the belts travel around a curve; and stripping means (fo-operating with said gripping means, substantially as described.

cross section having their edges connected 6. A bark stripping' machine comprising a support; endless belts mounted on opposite sides of said support; and gripping ymembers having their edges connected to edge of one member approaches the belts and the top surface of an adjacent member but recedes therefrom as the belts travel around a curve, substantially as described; a frame mounted on said support parallel with said gripping members; and U-shaped stripping members swingingly suspended on said frame and adapted to strip the bark from material drawn therethrough by said gripping means, substantiall as described.

7. A bark stripping machine comprising a support; endless belts mounted on opposite sides of said support; and gripping members having their edges connected to said belts, and the free edges thereof overhanging said belt and each other, so that in a straight line travel of the belts the free edge of one member approaches the belts and the top surface of an adjacent member but recedes therefrom as the belts travel around a curve, substantially as described; a frame mounted at one end of said support parallel to said gripping members; stripping members swingingly suspended from said frame, the legs of said members being bent inwardly toward each other and adapted to strip the bark from material drawn therethrough by said gripping members; a spring mounted between said legs for retaining same in close relation to each other; and a stop for arresting movement of said stripping member toward said gripping member, substantially as described.

8. A stripping machine comprising a support; a conveyor mounted on said support and having gripper-s thereon; a frame mounted at one end of said support parallel to said grippers; U-shaped resilient` members swinging-ly suspended on said frame and comprising spaced legs,the legs of said members having a portion bent inwardly toward each other; and a spring adapted to retain the said legs in close relation to each other.

In witness whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROMAN soBoLE-wsKI.

Witnesses: V

JOSHUA R. H. PoTTs, Rosin K. TRIB. 

